1. Home
  2. CVE Database
  3. CVE-2021-20234
MEDIUM · 6.5

CVE-2021-20234

An uncontrolled resource consumption (memory leak) flaw was found in the ZeroMQ client in versions before 4.3.3 in src/pipe.cpp. This issue causes a client that connects to multiple malicious or compr...

Vulnerability Description

An uncontrolled resource consumption (memory leak) flaw was found in the ZeroMQ client in versions before 4.3.3 in src/pipe.cpp. This issue causes a client that connects to multiple malicious or compromised servers to crash. The highest threat from this vulnerability is to system availability.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
ZeromqLibzmq< 4.3.3

Related Weaknesses (CWE)

CWE-401CWE-400

References

FAQ

What is CVE-2021-20234?

CVE-2021-20234 is a vulnerability with a CVSS score of 6.5 (MEDIUM). An uncontrolled resource consumption (memory leak) flaw was found in the ZeroMQ client in versions before 4.3.3 in src/pipe.cpp. This issue causes a client that connects to multiple malicious or compr...

How severe is CVE-2021-20234?

CVE-2021-20234 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-20234?

Check the references section above for vendor advisories and patch information. Affected products include: Zeromq Libzmq.